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The Master Lock No. 312D Laminated Padlock features a 1-9/16in (40mm) wide laminated steel body for maximum strength and reliability. The 9/32in (7mm) diameter shackle is 1-1/16in (27mm) long and made of hardened steel, offering extra resistance to cutting and sawing. A blue weather resistant thermoplastic shell is designed to add protection against moisture, dirt and grime. The 4-pin cylinder prevents picking and the dual locking ball bearings provide resistance against prying and hammering. The Limited Lifetime provides peace of mind from a brand you can trust.
From the Manufacturer
The Master Lock Laminated Steel Pin Tumbler Padlock offers exciting, colorful outdoor protection. It is keyed different with a solid-blue cover. The 1-9/16 inches wide laminated steel body guarantees superior strength. The high-tech thermoplastic shell is designed to withstand the elements. A matching colored keyhead gives added convenience. It's ideal for all outdoor applications. Master Lock offers a full line of padlocks, chains, cables, and specialty locks for all of your needs.
David Alan
September 3, 2025
Sharp looking and strong. Great price
rach
August 25, 2025
Very durable, the lock functionality is really nice it works how it’s supposed to the other thing to be weary of if the temperature is below freezing, you can still open the lock it’s just really hard ðŸ˜
Mathias farnsworth
August 22, 2025
worked as excepted no issues found
Mike From Mesa
August 21, 2025
The lock itself seems OK. It is covered with plastic and the key hole has a cover to keep rain out. The lock works smoothly enough and feels solid, although it is impossible to know how solid the shank is without trying to use a hack saw on it.I have not had it long enough to check to see if the rain rusts it or not, but will see how it stands up to moisture. While the bottom key hole is covered with a plastic cap there does not seem to be anything to prevent rain from getting into the lock from where the shank joins the lock. Time will tell.
Debbie Darling
August 11, 2025
Got this for my yard shed. Little Spendy but well worth the price. It has a protector on it to keep the rain & elements from ruining i. Great Lock
Mordechai Phelps
August 7, 2025
We’ve all seen the videos and we all know master lock sucks against the pick but heck if you have that much dedication my shed has a nice rusty pile of rusty bicycles and old paint cans and it does keep the kids out so I call it a win for this lock
sofia hurney
July 30, 2025
I purchased this item in hopes that it would not freeze and withstand cold weather. The item corroded and froze after two weeks of use. I am totally disappointed in this product considering it is a master lock. I only purchased it because it was a weather resistant product And it was a master lock. I would not recommend it to nobody.
Leonard Foreman
March 20, 2025
I use them on my tow bar for towing my Jeep, I read reviews that said they were not all that weather/water proof, so I wrap them in zip lock bags. So far so good.
NN
February 23, 2025
After a couple of months the lock is slightly rusty, and there's a white build up around the keyhole despite it being sealed with the cover. Not very weatherproof really.
Alonso
February 21, 2025
Candado de seguridad en intemperie, hasta el momento cumpliendo con lo esperado
Sandy
February 8, 2025
Product is perfect for my shed, easy to use and cap keeps moisture out.
Cliente de
February 6, 2025
Muy bueno excelente para utilizarlo ala interperie no importavla lluvia o el polvo gracias a su tapa evita problemas con la cerradura y simplemente funciona genial
Customer
December 29, 2024
Great price, way better than H Depot.
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